“Mia is finally able to upgrade her cell phone. The one she wants costs $220 but she is able to get it for 60% off. She has a co
1 answer:
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Answer: C)
Step-by-step explanation:
Given : The equation for this investment is B = 500(1.13)t, where B represents the balance and t is the number of years.
For monthly interest , Rate =
Time = 12 t [ 1 year = 12 months ]
As r = 0.13 , so rate =
Now, the equation will be :
Correct option : C)
Answer:
17. x = y^2 - 2ay +a^2
18. x = y^2 - a
Step-by-step explanation:
17. Since we want to make x the subject of the formula, we first isolate the square root of x and get
= y - a.
squaring both sides,
x = y^2 - 2ay +a^2
18. Since both x and the a are under the square root, we first start by squaring both sides.
So y^2 = x+a.
Isolating the x, we get
x = y^2 - a